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London, (ANI): Girls Aloud member Cheryl Tweedy has revealed that had it not been for her boyfriend Derek Hough insisting that medics carry out further tests, she would not be alive today.

Tweedy, 27, said that a medical blunder left her just hours from death, and that she only pulled through because Hough, 25, insisted on further tests, which later revealed she had malaria.

“Derek saved my life. If he hadn"t spoken out to the doctors and told them he thought something was seriously wrong I would probably have died," the Mirror quoted Tweedy as telling a friend. “I thought I had a bad case of flu and everyone else agreed. I was even told to stay at home and get some rest. The doctors were so certain it was not serious, and I believed them," she stated.

Tweedy had contracted the disease after being bitten by a mosquito during a holiday to Tanzania with American dancer Hough in June. But Hough has been telling relatives that it is his fault Tweedy is suffering from malaria, as it had been his idea to jet off to Tanzania on a romantic break.

“Derek blames himself for Cheryl getting the malaria and was terrified she was going to die," a source said. “She"s become so important to him, he could not imagine his life without her. He was worried sick and was going without food and sleep he was so concerned. Derek is just thankful she is ok now – and he has vowed to stay close to her so he can do everything he can to make sure she stays healthy," the source added.